Update release notes for 7.0 Preview 7 (#2223)

Author: jander-msft

documentation/releaseNotes/releaseNotes.md

@@ -4,3 +4,5 @@ Today we are releasing the next official preview of the `dotnet monitor` tool. T
 - Fixed memory leak in authentication handler (#2165)
 - Fixed duplication of metrics (#2149)
 - Add `CollectLiveMetrics` collection rule action (#2119)
+- Update Azure.Storage.Blobs to 12.13.0 (#2218)
+- Update Azure.Storage.Queues to 12.11.0 (#2218)